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Rifles, Reloading, Optics, Equipment
Reloading
Reloading
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<blockquote data-quote="Lefty7mmstw" data-source="post: 911535" data-attributes="member: 48043"><p>why?? </p><p> </p><p>I was using I4064 in my 7rem with 140 grain bullets... 56 grains...100 yard cloverleafs... tried 4895 at a few grains lower and it worked well too... 47gr. of 3031 isn't the best load but is a good economical load and should be sub moa with a lot less lower burned than 7828, etc.. It's give and take with lighter bullets in mag. calibers and sometimes powders that you think are to fast actually do rather well. If you haven't got enough load on the powder (lighter bullet/ big case), slower powders can't be expected to do well in extremely cold temps.. I'd think of something like rl17 or 4350 before I'd go as fast as 3031, but don't knock it until you've tried it. </p><p> </p><p>Muzzle up/down is the only real issue here but these powders light so easily that that isn't even much trouble as long as you are over 1/2 full. Heck, I'm burning 34 rl7 in my 375h@h with a 280 cast; the case is just less than 1/2 full and I've had no issues; it's just over moa at 100 yards with a <em>cast </em>bullet.</p><p> </p><p>If you notice, when he passed 150 grains, the powder speed went to what most would think should be burned in a magnum caliber.</p></blockquote><p></p>
[QUOTE="Lefty7mmstw, post: 911535, member: 48043"] why?? I was using I4064 in my 7rem with 140 grain bullets... 56 grains...100 yard cloverleafs... tried 4895 at a few grains lower and it worked well too... 47gr. of 3031 isn't the best load but is a good economical load and should be sub moa with a lot less lower burned than 7828, etc.. It's give and take with lighter bullets in mag. calibers and sometimes powders that you think are to fast actually do rather well. If you haven't got enough load on the powder (lighter bullet/ big case), slower powders can't be expected to do well in extremely cold temps.. I'd think of something like rl17 or 4350 before I'd go as fast as 3031, but don't knock it until you've tried it. Muzzle up/down is the only real issue here but these powders light so easily that that isn't even much trouble as long as you are over 1/2 full. Heck, I'm burning 34 rl7 in my 375h@h with a 280 cast; the case is just less than 1/2 full and I've had no issues; it's just over moa at 100 yards with a [I]cast [/I]bullet. If you notice, when he passed 150 grains, the powder speed went to what most would think should be burned in a magnum caliber. [/QUOTE]
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